Brake mechanism.



R. MOORE.

BRAKE MECHANISM.

APPLICATION FILED MAR. 28, I914. 1,284,129. 1 Patented Nov. 5,1918.

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R. MOORE.

BRAKE MECHANISM.

APPLICATION FILED MAR. 28. 1914 ii ,filii, 1 Q91. Patented Nov. 5, 1918.

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7- L ray rm di i oscae N R.. MOORE.

BRAKE MECHANISM,

I APPLICATION FILED MAR. 28 1 914.; I I

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1 I I w- 1a I l l6 7 \F W42 v Patent-edNov. 5,1918. I

ROSCOE MOORE, OF WILKES-BARBE, PENNSYLVANIA BRAKE MEqHAnIsiu.

Specification of Letters Patent Patented Nov. 5, 1918.

Application filed. March 28, 1914. Serial No. 827,948.

To an 'wlzom it may concern: Be it known that I, Rosoon Moons, a 01131- zen of the United States, residing in Wilkes Barre, county of Luzerne, State of Pennsylvania, have invented certain Improvements in Brake Mechanlsm,.of which the following is a specification.

ing or haulage systems equipped with a brake engine having either a weight or an air operated actuating device and also pro vided with apparatus for preventing overtravel, overspeed 01' other abnormal move ment of the cable drum.

One object of the invention is to provide a simple and effective system of the above type, whereby the holding brake is automatically and quickly applied without interfering with the operators lever and without the employment of auxiliary valves or by-passes other than'those ordinarily used in the service application of the brake, the invention including a novel formof electromagneti cally controlled device for connecting the valve' or valves with the apparatus for governing the same. together with positive means whereby the holding brake is prevented from' accidental release 1n case the operator is not at his levers when the circuit.

lifted by the operators lever These ob ects and other advantageous ends I secure 'as hereinafter set forth, reference beinghad to the accompanying drawings,in

which: 7

Figure 1 is a side elevation, to some ex tent diagrammatic, illustrating my invention as applied to a well known form of brake mechanism;

Figs. 2 and 3 are respectively a front ele I vation and a horizontal section; of the appa ratusshownin Fig. 1, the latter being taken on the line aa 1s a perspective View illustrating in detail the arrangement of certain of the mechanism forming part of the invention, and 1 Figs. 5 and 6 are respectively a side and a front elevation on an enlarged scale showingthe detail construction of the solenold and certain of its associated parts. My inyention relates to that class of hoist-,

In the above drawings, 1 represents a drum I or any other rotary member whose'revolu-- tion is to be checked or stopped, and this has a more or less extended cylindrical surface on which in the present instance is operative operating lever 13 having connected to it a link 12 leading from the secondbrake frame not shown Which is also connected to the lower end of said part 2 by alink 8.

For operating the brake, I provide asuitable engine, such, for example, as a cylinder 14 having a piston 15 providedwith a piston rod 16, which in turn is connected through a cross-head l7 and a palr of links 18 to the forked end of the brake operating lever 13. From the cross-head 17 s hung. a relatively heavy weight 19 by means of a pan of links 20 and the upper end of the piston rod 16 has fixed to it a piston 21 operative in a cylinder 22 which with the valve mechanism hereafter described constitutes an 011' cataract for locking the piston rod 16 and its attached parts in any given position.

In the present instance the admission of motive fluid to the brake engine cylinder 14 is controlled bya slide valve 23'connected to:

an operating rod 2- 1 also connected-"to a.

valve 25, whereby communication between vthe two endsof; the oil cataract-cyl nder 22 may be established or cut off In the present instance, thefenglne cylinder '14 isso constructed that when the valve 23 ism its mid position the flow of motive flllld from'the supply chest 26 is prevented-and the port 27 to the interior ofthe said chest salso closed off from the exhaust 28w If 'sald valve 23is leading from .the lower end of said cylinder moved upwardly, motive flu d is admitted -from the chest 26 through theport 27 into 7 upon the closing of the circuit of the solenoid causes said hook 41 to turn on its pivot and engage the pin 40.

The weight 33 is so proportioned and adjusted that it practically balances the weight of the solenoid 50 and its attached parts; which as shown are preferably. though not necessarily carried on the reach rod As a result or" this construction, the operator s lever will remain in any position in which it is placed; although when the latch formed by the hook is disengaged from the floating lever, the Weight 33 immediately becomes operative to move the valve 23 to such a position will permit the brake to automatically set. After the disconnection of the hook from the floating lever, the weight of the solenoid would tend to move the operating; lever 4-8 into its forward position, although if such lever were held by the operator at the instant the hook disengaged it would then remain wherever it was held, the brake setting independently or such position.

(lbviously, the detail construction of the hook or latch mechanism is immaterial. since it can be made to disconnect the valve mechanism from. the operating lever. although of widely different form. without departing from. my invention. Since the main function of the solenoid is merely that f winging the hook on its pivot. it may be of relatively small size and capacity. re-

but little current for its operation.

espe lly since the Work incident on rc connecting the parts after the hook has re leased the floating lever is done for the most part. by the operator in raising: the solenoid core and hook into a position from which the latter at once swings on its pivot into engagement with the pin id of the Healing lever when the solenoid circuit is .he combination of a valve mechaor controlling; said valve *luding an elcctro-niagnetilatch; and speed responsive ed to cause operation of said to d :iicct raid controlling; means the valve mechanism under predetern ed conditions.

nation oi a valve I118Cll;\

nanism including an electroag [v actuated member; an electroman 6 for operating: said member to dis 1'. said means from the valve inccliaide predetermined conditions, the ing: mbans including; an electoral. ad- :it. will to a position to cooperate itcd means for controlling with the electro-magnetically actuated mempies said position, to establish an operative connection between the valve mechanism and the operatirg means; with a limit witch in circuit With the electromagnet.

l. The combination of a limit switch placed to be actuated under predetermined conditions; valve mechanism; a handopcratecl. member for governing the operation of said valve mechanism; and means for connecting said member with the valve mechanism including an electro-magnetic latch having' windings in circuit with said switch.

5. The combination of valve mechanism: an operating member for controllirg said mechanism; means connecting said member with the valve mechanism and including a floating lever; a latch detachably engagingsaid lever; with electro-magneticallv controlled means for operating the latch at will.

6. The combination of valve mechanism; an operating member; means connecting said member and the valve mechanism including a floating lever and a latch separablv connecting said lever to the operating member; a weight operative to move the floating lever with thevalve mechanism to a predetermined position; and electro-magnetic means for actuating the latch. said means being mounted to normally. neutralize the effect of the weight.

7. The combination of valve mechanism: an operatingmember for said mechanism: means including a hook adjustable at will hv said member for detachably connecting said member and the mechanism; and an electromagnetic hook.

8. The combination oi valve mechanism; an operating lever; means connecting said operating lever and the valve mechanism, including a link. a floating lever and a; latch carried by the link in position to detachahiv engage the floating lever: with an electromagnet mounted on the link for actuating the latch.

in testimony whereof. I have sighed nrv name to this specification. in the presence of two subscribing witnesses.

ROSCOE MOORE.

Witnesses L. F. Mnrrniv, J. M. GREGORY.

device for controlling the. 

